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<?php |
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declare(strict_types=1); |
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namespace BitWasp\Bitcoin\Networking\Serializer\Structure; |
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use BitWasp\Bitcoin\Networking\Structure\Header; |
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use BitWasp\Bitcoin\Serializer\Types; |
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use BitWasp\Buffertools\Buffer; |
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use BitWasp\Buffertools\BufferInterface; |
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use BitWasp\Buffertools\Parser; |
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class HeaderSerializer |
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{ |
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/** |
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* @var \BitWasp\Buffertools\Types\ByteString |
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*/ |
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private $bytestring12; |
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/** |
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* @var \BitWasp\Buffertools\Types\ByteString |
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*/ |
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private $bytestring4; |
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/** |
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* @var \BitWasp\Buffertools\Types\Uint32 |
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*/ |
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private $uint32; |
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public function __construct() |
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{ |
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$this->bytestring12 = Types::bytestring(12); |
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$this->bytestring4 = Types::bytestring(4); |
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$this->uint32 = Types::uint32le(); |
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} |
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/** |
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* @param Header $header |
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* @return Buffer |
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*/ |
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public function serialize(Header $header): BufferInterface |
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{ |
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$command = new Buffer(str_pad($header->getCommand(), 12, "\x00", STR_PAD_RIGHT)); |
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return new Buffer( |
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$this->bytestring12->write($command). |
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$this->uint32->write($header->getLength()). |
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$this->bytestring4->write($header->getChecksum()) |
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); |
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} |
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/** |
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* @param BufferInterface $data |
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* @return Header |
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*/ |
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public function parse(BufferInterface $data): Header |
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{ |
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return $this->fromParser(new Parser($data)); |
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} |
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/** |
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* @param Parser $parser |
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* @return Header |
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*/ |
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public function fromParser(Parser $parser): Header |
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{ |
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return new Header( |
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trim($this->bytestring12->read($parser)->getBinary()), |
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(int) $this->uint32->read($parser), |
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$this->bytestring4->read($parser) |
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); |
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} |
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} |
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Bit-Wasp /
bitcoin-p2p-php
